Internal-combustion engine.



U., M. LEBGH. INTERNAL GOMBUSTION ENGINE. APPLIOATIOH mmm 00T. a, 1912.

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INTERNAL GOMBUSTIGM I'SNGINEA aPfLloAT'lori MLB 00T. a, 1912 @www Jim@2, H4.

`G. M. LEBGH. INTERNAL GoMBUsTIo'N ENGINE. APPLICATION FILED 00T. B,1912.

Pajtemd June 2, 19M.

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CHARLES IWI. LEECH,AOF LIMA, OHX.

. INTERNAL-COMBUSTION ENGINE.

Specification olLetters tentent.

raient-eu aune e, ieri.

Application tiled October 8, 1912'. Serial No. 724,552.

ticular reference' to an internal combustion engine' preferably of thetwo cycle type, embodying novel means for regulating the feeding of thegas or fuel to the cylinder or cylinders of the same.

A further object of the invention' is to provide novel means to compressthe explosive charge and feed the same to the cylinder;

A further object of the invention is to provide an engine of the abovementioned character, which lisstronggg, durable, and not liable toderangements.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

lin the' accompanying drawings forming a part of this specification andin which. like numerals are employed to designate like parts thrgughoutthe same, Figure 1 is a central vertical sectional view through theengine, Fig. 2is a horizontal sectional view taken on line 2-2 of Fig.1, Fig. 3 is a vertin c al sectional view takenA on line 3-3 of Fig. 1,Fig. 4l is ahorizontal sectional view taken on line [1-4 of Fig. 1, Fig.5 is a side view of a stationary valve casing, Fig. G is a side view ofa rotatable valve, and, Fig. 7 is a transverse sectional view throughthe rotatable valve, showing the same in a position to supply thecompressed charge to the enplosion cylinder.

In the drawings, wherein for the purpose of illustration, l have shown apreferred embodiment of my invention, the numeral 8 designates anexplosion cylinder, which is mounted upon a lower pumping cylinder 9,having' a larger diameter, as shown. Surrounding the cylinder 8 areradially disposed fins 10, inclosed within a jacket 11, `provided at itsupper end with an air inlet opening 12. The cylinder S is provided withan exhaust port 13 and a plurality of inlet ports 14, which. lead into acommon inlet port 15, as shown. A swinging valve 16 is disposed near theplurality of inlet ports lll and serves to control the passage of theeXn plosive charge into the same. Surrounding the lower cylinder 9 is anouter casing 17, providing an air space 1P, which surrounds the lowerpumping cylinder 9 and is in free communication with the interior of theJacket l1.V The outer easing 17 has a crankl case section 19 formed uponthe lower end thereof, as shown, which is connectedwith a lower crankcase section 20, for forming a closed crank case.

Mounted to reciprocate within the explo lsive cylinder' 8 is hollowpiston 22, pron vided at its lower end with a pumping' piston 23, oflarger diameter, as shown. The piston 23 operates within the pumpingcylinder 9, as shown. Extending into the piston 2.2 is a pit-man 24,pivotally connected therewith by a transverse pin 25. The nu! mcral 26designates a crank shaft, provided with a crank 27, shown. A pin 28pivot ally connects the lower end of the pitman 2l with the crank 2T.

The numeral 29 designates a casting or housing formed upon one side ofthe outer easing 1'? and provided with a central longitudinal opening230, for receiving a station-- ary valve casing or seat 31, providednear its ends and upon its upper side with openn ings 32, having freecommunication with a chamber shown. This chamber discharges into a port3st, which leads into the inlet port lo, as shown. The stationary casingor seat 31 is provided intermediate its.

ends and diainetrically opposite the openings 32, withfa pair pfopenings Se, which lead into ports 36 :uid 37, as shown. rlhe port '3l'leads into a port l-3, which. discharges tl'u'ough an opening 39 into achain bei' at). The chamber rt() has communica tion with the pumpingcylinder il through an opening fill., shown. The chamber 40 is entirelyclosed except for theopenings 39 and lfl.

rlfhe numeral 42 designates a port or mauifold which leads into the portSti and has coinmunication with the carbureter to reX` lOl lbrought s dportsflli i vided near i is. ...on v, j lead into vious th valve 51B i.istration nh t. compressed e. into the rotatable tubular vaive. rEhetubo-- lar valve i3 is held against long/it inal displacement bysecuring plates 50V 'Ti e tubular vaive is rotated by o pinion 5i, whichis rigidly mounted upon the tinnuion 45. The pinion 5l is drven by apinion 52, which is rigidly mounted upon the crank shaft Leading intothe ehainber 33 is a pipe 33, connected with the upper end of o pipe42a, which leads into the chamber l/v. A pressuie relief vulve structureis mounted in the upper end of the pipe to 'norinaiy 'orevent the beekioiv of gas, but permittii the saine to return to the chain r i2 'whenthe n, ce-

i8 oi 'the tuoular d to move into reg- L eiungs wherebyY the charge movhe fed pressure in the port Se ence-eds e Certain i This veive structureincludes e shell.

lim t. 54, formed of the upper end of pipe Within which is inounted liiding easing 55, receiving o valve stein 56 of a downward y openingvalve 57.. r'his valve is norineii" held by e spring 5S of the desiredstidness. fi Clamping ringV 59 retains the hoidinr easing; in its properposition and lthis Clamping ring is normally covered by a Cep 50.

The crank oase sections 19 and 20 ere pro vided i'espeetivelv withily-wheel Casing,` seotions Gl and which forni a iy-Wlieei Casing havingfree Communication with the airspace 1S through an. opening The{iv-Wheel easing has its outer rido i'oi'ined en tirely open, s 'idlvmounted upon the crank si onibined fj;- vfheel and ian 6 its peripherg7with ribs o; a u d at en angle with i'eiation 2o shown. i

The opera-1l loivs': iih en its downward munieation bei bv the 'epumping evi^ il, 23 has reached its cover the e are in f l. the pistondost position to unheust port i3, openings 4S n with the openings 3Q, imessed charge contained Within Idie vziiv v is fed 'through port i5 endof the cylineoinbustion ere ie piston :22 L; the fresh der 8, vfhiibeine' expolio now f charge fed 'thi erein and compress the seine priorto the inne when the seine is fired, Thieh, of Course, occurs When thepiston is about to 1; pon its downward inovei'lhen the 23 nievesuppmsses thd charge fed in the i o, f charge is now fed into valve fl-3when the oponin f' d8 niove into @tion with vthe ope ngs 49, whichoccurs vv ien the piston 22 is nearing its upf permost position.

A in this Way the oompressed eharge is stored Within the'rotatebie valvef3 until the openings 4 8 thereof move into registration with theopenings 32, as above explained. The fluvivheei fan within its easingand sucks eir ironi the oir space i8, whereby said air is drawndownivnrdljv Within the jacket 1i and the easing i7 and dischargedthronoh the opening 63 in'io the fly-Wheel easing. in this .manner the@vlinders are properlgr cooled.

lt is to be understood that the 'form of my invention herewith shown anddescribed is to be taken as a preferred exemple of the saine and thatcertain changes in the shape, size, and arrangements oi' parts mayberesorted to without departing from the spirit of the invention or thescope of the subjoined Claims.

Having thus described. rnv invention, Gleim;-

i. in an engine of the character described, an explosion cylinder, epumping Cylinder connected therewith, a piston operating Within theexpiosion cylinder, a pumping piston connected with the first naniedpiston and operating- Within the pumping oviinder, a crank. shaft,pitinan connecteil with the oran; shaft and the first named piston, aConduit for suppiving gas into tile pumping oyiinder upon the downstroke of the. puinpingpiston and reeeivinfr the eonipressed from thepuinpi 4, upon the up stroke of the puinpin i second eonduit 1forsupniving' the to the eiiplosion inder, ineans Vtroiiing theCommunication between and nenied eonduits, and a ep`rv ielie valvedisposed between t.'

second Tn -ned conduits.

ie ehereeter ler provided with ,dienst po l therewith, a :W ing vfitliinthe er; i ing' piston connected with the Working piston and operating;within the'punipinVr evipiston operetinderi a crank shaft, a pitnianeonnectin osion ev inder, e p nipl ,nication between the gas suppydevice and the supply conduit and having an opening formed through itsWall which leads into the `ihteror ofthe stime to allow of the passa-geof the compressed gas into Sai tubular valve when the. valve is in oneposition and the discharge of Such compressed gas into the inlet conduitwhen said valve is moved to another position, means operated by the 10crank shaft to rotate Seid Valve and means whereby the charge isautomatically returned from the inlet conduit to the supply device whenthe pressure Within the inlet conduit exeees :i predetermined degree.

1n testimony whereof it aix :my sigimture 15

